Method of indicating spatial characteristic parameter set, user-side device and network-side device

ABSTRACT

A method of indicating a spatial characteristic parameter set, a user-side device and a network-side device are provided. The method includes: acquiring first indication information, wherein the first indication information indirectly indicates a spatial characteristic parameter set scheduled to the user-side device, the spatial characteristic parameter set is one of a plurality of spatial characteristic parameter sets configured for the user-side device; determining, according to the first indication information, the spatial characteristic parameter set scheduled to the user-side device.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a U.S. national phase application of a PCTApplication No. PCT/CN2018/099576 filed on Aug. 9, 2018, which claimspriority to a Chinese Patent Application No. 201710681979.7, filed inChina on Aug. 10, 2017, the disclosure of which is incorporated hereinby reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of communication, and inparticular, relates to a method of indicating a spatial characteristicparameter set, a user-side device, and a network-side device.

BACKGROUND

In the field of communication, a communication method based onlarge-scale antennas may increase a peak rate and spectrum utilizationof a communication system, and a high frequency band has rich spatialfrequency resources. Therefore, a large-scale antenna communicationtechnology and a high-frequency communication technology will beintroduced in a 5th generation (5G) mobile network.

In the 5G, a network-side device needs to indicate to a user equipment(UE) a variety of spatial characteristic parameters (such as beams,precoding matrices), which will result in large signaling overhead ifthe indication method in the related art is used.

SUMMARY

Some embodiments of the present disclosure provide a method ofindicating a spatial characteristic parameter set, a user-side deviceand a network-side device.

In a first aspect, the present disclosure provides a method ofindicating a spatial characteristic parameter set, and the method isperformed by a user-side device and includes: acquiring first indicationinformation, wherein the first indication information indirectlyindicates a spatial characteristic parameter set scheduled to theuser-side device, the spatial characteristic parameter set is one of aplurality of spatial characteristic parameter sets configured for theuser-side device; determining, according to the first indicationinformation, the spatial characteristic parameter set scheduled to theuser-side device.

In a second aspect, the present disclosure provides a method ofindicating a spatial characteristic parameter set, and the method isperformed by a network-side device and includes: determining firstindication information, wherein the first indication informationindirectly indicates a spatial characteristic parameter set scheduled tothe user-side device, and the spatial characteristic parameter set isone of a plurality of spatial characteristic parameter sets configuredfor the user-side device; transmitting the first indication information.

In a third aspect, the present disclosure provides a user-side device.The user-side device includes: a first processing module, used toacquire first indication information, wherein the first indicationinformation indirectly indicates a spatial characteristic parameter setscheduled to the user-side device, and the spatial characteristicparameter set is one of a plurality of spatial characteristic parametersets configured for the user-side device; a second processing module,used to determine, according to the first indication information, thespatial characteristic parameter set scheduled to the user-side device.

In a fourth aspect, the present disclosure provides a network-sidedevice. The network-side device includes: a processing module, used todetermine first indication information, wherein the first indicationinformation indirectly indicates a spatial characteristic parameter setscheduled to the user-side device, and the spatial characteristicparameter set is one of a plurality of spatial characteristic parametersets configured for the user-side device; a transceiving module, used totransmit the first indication information.

In a fifth aspect, the present disclosure provides a user-side device.The user-side device includes a storage, a processor, and a program ofindicating a spatial characteristic parameter set, wherein the programof indicating a spatial characteristic parameter set is stored on thestorage and executable by the processor, and in a case that the programis executed by the processor, the processor implements steps of themethod of indicating a spatial characteristic parameter set according tothe first aspect.

In a sixth aspect, the present disclosure provides a network-sidedevice. The network-side device includes a storage, a processor, and aprogram of indicating a spatial characteristic parameter set, whereinthe program of indicating a spatial characteristic parameter set isstored on the storage and executable by the processor, and in a casethat the program is executed by the processor, the processor implementssteps of the method of indicating a spatial characteristic parameter setaccording to the second aspect.

In a seventh aspect, the present disclosure provides a computer readablestorage medium, wherein a program of indicating a spatial characteristicparameter set is stored on the computer readable storage medium; in acase that the program of indicating a spatial characteristic parameterset is executed by a processor, the processor implements steps of themethod of indicating a spatial characteristic parameter set according tothe first aspect.

In an eighth aspect, the present disclosure provides a computer readablestorage medium, wherein a program of indicating a spatial characteristicparameter set is stored on the computer readable storage medium; in acase that the program of indicating a spatial characteristic parameterset is executed by a processor, the processor implements steps of themethod of indicating a spatial characteristic parameter set according tothe second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate technical solutions in someembodiments of the present disclosure or in the related art, drawingsused in description of some embodiments or the related art will bebriefly introduced below. Obviously, the drawings in the followingdescription are only some embodiments described in the presentdisclosure. Based on these drawings, other drawings may be obtained by aperson of ordinary skills in the art without any creative effort.

FIG. 1 is a first schematic flowchart illustrating a method ofindicating a spatial characteristic parameter set according to someembodiments of the present disclosure;

FIG. 2 is a first schematic diagram illustrating a method of indicatinga spatial characteristic parameter set according to some embodiments ofthe present disclosure;

FIG. 3 is a second schematic diagram illustrating a method of indicatinga spatial characteristic parameter set according to some embodiments ofthe present disclosure;

FIG. 4 is a third schematic diagram illustrating a method of indicatinga spatial characteristic parameter set according to some embodiments ofthe present disclosure;

FIG. 5 is a second schematic flowchart illustrating a method ofindicating a spatial characteristic parameter set according to someembodiments of the present disclosure;

FIG. 6 is a first schematic diagram illustrating a structure of auser-side device according to some embodiments of the presentdisclosure;

FIG. 7 is a first schematic diagram illustrating a structure of anetwork-side device according to some embodiments of the presentdisclosure;

FIG. 8 is a second schematic diagram illustrating a structure of auser-side device according to some embodiments of the presentdisclosure; and

FIG. 9 is a second schematic diagram illustrating a structure of anetwork-side device according to some embodiments of the presentdisclosure.

DETAILED DESCRIPTION

In order for a person skilled in the art to better understand thetechnical solutions in the present disclosure, technical solutions insome embodiments of the present disclosure will be clearly andcompletely described below with reference to the drawings of the presentdisclosure. Apparently, the described embodiments are only some, ratherthan all, of embodiments of the present disclosure. Based on theembodiments of the present disclosure, all other embodiments derived bya person of ordinary skills in the art without any creative effort shallfall within the protection scope of the present disclosure.

The method of indicating a spatial characteristic parameter set, theuser-side device and the network-side device provided by someembodiments of the present disclosure may solve a problem that anindication of a spatial characteristic parameter causes large signalingoverhead.

It should be understood that the technical solutions of some embodimentsof the present disclosure may be applied to various communicationsystems, such as, a Global System of Mobile Communication (GSM) system,a Code Division Multiple Access (CDMA) system, a Wideband Code DivisionMultiple Access (WCDMA) system, a General Packet Radio Service (GPRS)system, a Long Term Evolution (LTE) system, an LTE Frequency DivisionDuplex (FDD) system, an LTE Time Division Duplex (TDD) system, aUniversal Mobile Telecommunication System (UMTS) system or a WorldwideInteroperability for Microwave Access (WiMAX) communication system, a 5Gsystem, or a New Radio (NR) system.

In some embodiments of the present disclosure, the user-side device mayinclude, but is not limited to, a Mobile Station (MS), a MobileTerminal, a Mobile Telephone, a User Equipment (UE), a handset, aportable equipment and a vehicle, etc. The user-side device maycommunicate with one or more core networks via a Radio Access Network(RAN), and for example, the user-side device may be a mobile phone (orreferred to as “cellular” phone), a computer having a function of awireless communication, and the like; the user-side device may also be aportable mobile device, a pocket-sized mobile device, a handheld mobiledevice, a computer built-in mobile device or an in-vehicle mobiledevice.

In some embodiments of the present disclosure, the network-side deviceis a device deployed in a radio access network to provide a wirelesscommunication function for the user-side device. The network-side devicemay be a base station, and the base station may include various forms ofmacro base stations, micro base stations, relay stations, access points,and so on. In systems using different wireless access technologies,names of devices having a function of a base station may be different.For example, an Evolved NodeB (eNB or eNodeB) in an LTE network may be aNode B in a 3rd generation (3G) network, and the like.

It should be noted that, methods of some embodiments of the presentdisclosure may be applied to an indication of a downlink spatialcharacteristic parameter set, and may also be applied to an indicationof an uplink spatial characteristic parameter set. Optionally, it may beunderstood that first indication information in some embodiments of thepresent disclosure may indicate a downlink spatial characteristicparameter set scheduled to a user-side device by way of indirectindication, and the first indication information may also indicate anuplink spatial characteristic parameter set scheduled to the user-sidedevice by way of indirect indication.

FIG. 1 is a schematic flowchart illustrating a method of indicating aspatial characteristic parameter set according to some embodiments ofthe present disclosure, and the method shown in FIG. 1 may be executedby a user-side device. As shown in FIG. 1, a method 100 includes stepsS110 to S120.

S110: acquiring first indication information, wherein the firstindication information indirectly indicates a spatial characteristicparameter set scheduled to a user-side device, and the spatialcharacteristic parameter set is one of a plurality of spatialcharacteristic parameter sets configured for the user-side device.

Optionally, in S110, the plurality of spatial characteristic parametersets configured for the user-side device are a plurality of spatialcharacteristic parameter sets configured for the user-side device asspecified in a protocol, or the network-side device configures theplurality of spatial characteristic parameter sets configured for theuser-side device through configuration information. For example, thenetwork-side device configures the plurality of spatial characteristicparameter sets for the user-side device through a Radio Resource Control(RRC) transmitted to the user-side device. Optionally, the network-sidedevice configures the plurality of spatial characteristic parameter setsfor the user-side device through a Media Access Control Control Element(MAC CE) transmitted to the user-side device. Optionally, thenetwork-side device configures a plurality of spatial characteristicparameter sets for the user-side device through Downlink ControlInformation (DCI).

Optionally, in S110, the spatial characteristic parameter set includes abeam set and/or a precoding matrix set. That is, the first indicationinformation indirectly indicates a beam set and/or a precoding matrixset scheduled to the user-side device.

Optionally, as an example, each spatial characteristic parameter setincludes at least one set element, and the set element is a spatialcharacteristic parameter group, and the spatial characteristic parametergroup includes at least one spatial characteristic parameter. That is,each spatial characteristic parameter set may include one or morespatial characteristic parameters, or each spatial characteristicparameter set may include one or more spatial characteristic parametergroups, or each spatial characteristic parameter set may include one ormore spatial characteristic parameters and one or more spatialcharacteristic parameter groups.

Optionally, as an example, there is an identical set element indifferent spatial characteristic parameter sets. For example, it isassumed that there are two spatial characteristic parameter sets, namelya spatial characteristic parameter set 1 and a spatial characteristicparameter set 2. The spatial characteristic parameter set 1 includes aspatial characteristic parameter 1, a spatial characteristic parameter 2and a spatial characteristic parameter group [a spatial characteristicparameter 3, a spatial characteristic parameter 4]. The spatialcharacteristic parameter set 2 includes a spatial characteristicparameter 1, a spatial characteristic parameter 5 and a spatialcharacteristic parameter group [a spatial characteristic parameter 6, aspatial characteristic parameter 7].

Optionally, as another example, the set elements in different spatialcharacteristic parameter sets are completely different. For example, itis assumed that there are two spatial characteristic parameter sets,namely a spatial characteristic parameter set 1 and a spatialcharacteristic parameter set 2. The spatial characteristic parameter set1 includes a spatial characteristic parameter 1, a spatialcharacteristic parameter 2 and a spatial characteristic parameter group[a spatial characteristic parameter 3, a spatial characteristicparameter 4]. The spatial characteristic parameter set 2 includes aspatial characteristic parameter 5, a spatial characteristic parameter 6and a spatial characteristic parameter group [a spatial characteristicparameter 7, a spatial characteristic parameter 8].

S120: determining, according to the first indication information, aspatial characteristic parameter set scheduled to the user-side device.

Specifically, the method of indicating a spatial characteristicparameter set in some embodiments of the present disclosure mainlyincludes a method described in the following examples:

First Example: the first indication information is beam indicationinformation, the beam indication information directly indicates a beamgroup scheduled to the user-side device in a beam set; or the firstindication information is precoding matrix indication information, andthe precoding matrix indication information directly indicates aprecoding matrix group scheduled to the user-side device in a precodingmatrix set.

In S110, the first indication information is beam indicationinformation, the beam indication information directly indicates a beamgroup scheduled to the user-side device in the beam set.Correspondingly, in S120, the user-side device may determine, accordingto mapping relationship between the beam indication information and thebeam set, the beam set scheduled to the user-side device. Optionally, inS110, the first indication information is precoding matrix indicationinformation, and the precoding matrix indication information directlyindicates a precoding matrix group scheduled to the user-side device.Correspondingly, the user-side device may determine, according tomapping relationship between the precoding matrix indication informationand the precoding matrix set, the precoding matrix set scheduled to theuser-side device.

Taking a case as an example in which the spatial characteristicparameter set includes a beam set and the first indication informationis beam indication information. As shown in FIG. 2, Beam set 1 includesBeam 1, Beam 2, Beam 3, and Beam 7; and Beam set 2 includes Beam 7, Beam8, Beam 9, and Beam 1. If the first indication information indicatesBeam 1, Beam 2, and Beam 3, the user-side device determines that thebeam set scheduled to the user-side device is Beam set 1. If the firstindication information indicates Beam 7, Beam 8, and Beam 9, theuser-side device determines that the beam set scheduled to the user-sidedevice is Beam set 2.

Optionally, as an example, the beam indication information indicates abeam by using 2 bits. If a currently effective beam set is Beam set 1, acorrespondence relation between beam indication information and a beammay be: “00” used for indicating Beam 1, “01” used for indicating Beam2, “10” used for indicating Beam 3, and “11” used for indicating Beam 7.If the currently effective beam set is Beam set 2, the correspondencerelation between beam indication information and a beam may be: “00”used for indicating Beam 7, “01” used for indicating Beam 8, “10” usedfor indicating Beam 9, and “11” used for indicating Beam 1.

Further, a beam set may be associated with another beam set through aspecific beam group therein. In this case, the user-side devicedetermines, in a case that the beam group indicated by the beamindication information is a non-specific beam group in a first beam set,that the beam set scheduled to the user-side device is the first beamset. The user-side device determines, in a case that the beam groupindicated by the beam indication information is a specific beam group ina second beam set, that the beam set scheduled to the user-side deviceis a beam set associated with the second beam set through the beam groupindicated by the beam indication information. A precoding matrix set maybe associated with another precoding matrix set through a specificprecoding matrix group therein. In this case, the user-side devicedetermines, in a case that the precoding matrix group indicated by theprecoding matrix indication information is a non-specific precodingmatrix group in a first precoding matrix set, that the precoding matrixset scheduled to the user-side device is the first precoding matrix set.The user-side device determines, in a case that the precoding matrixgroup indicated by the precoding matrix indication information is aspecific precoding matrix group in a second precoding matrix set, thatthe precoding matrix set scheduled to the user-side device is aprecoding matrix set associated with the second precoding matrix setthrough the precoding matrix group indicated by the precoding matrixindication information.

Similarly, taking the beam sets shown in FIG. 2 as an example, Beam set1 is associated with Beam set 2 through Beam 1 and Beam 7. In a casethat the currently effective beam set is Beam set 1 and the beamindication information is “00”, the beam indicated by the beamindication information is Beam 1 in this scheduling and the beamindication information implicitly indicates that the beam set scheduledto the user-side device continues to be Beam set 1. In a case that thecurrently effective beam set is Beam set 1, and the beam indicationinformation is “11”, the beam indicated by the beam indicationinformation is Beam 7 in this scheduling, and the beam indicationinformation implicitly indicates that the beam set scheduled to theuser-side device is switched to Beam set 2 from a time instance when aspecified condition is satisfied. The Beam set 2 that takes effect atthe time instance when the specified condition is satisfied, remains ineffect until the beam indication information received by the user-sidedevice is “11”. That is, before the beam indicated by the beamindication information is Beam 1 in Beam set 2, the user-side deviceconsiders that the beam set scheduled to the user-side device needs tobe switched to Beam set 1. The user-side device may switch the currentlyused beam set from Beam set 2 to Beam set 1 at the time instance whenthe beam indication information indicating Beam 1 in Beam set 2 isreceived, and the user-side device may also switch the currently usedbeam set from Beam set 2 to Beam set 1 at the time instance when thespecified condition is satisfied.

Optionally, as an example, the above-mentioned specified condition is acondition that the user-side device transmits response informationrelated to the first indication information to the network-side device,for example, Acknowledgement (ACK) information. Optionally, theabove-mentioned specified condition is a condition that a predeterminedtime interval elapses after the user-side device receives the firstindication information.

Optionally, as an example, the foregoing specified condition isconfigured by the network-side device for the user-side device or isspecified by a protocol.

Since the beam indication information is usually transmitted in acontrol channel of the physical layer, the method in some embodiments ofthe present disclosure may further reduce high-layer signaling overhead.The beam indication information implicitly indicates the beam setscheduled to the user-side device, which may reduce a bit overhead forDownlink Control Information (DCI) of the physical layer.

Second Example: the first indication information is a Rank Indication(RI)

In S110, the first indication information is the RI; correspondingly, inS120, the user-side device determines, according to mapping relationshipbetween the RI and a spatial characteristic parameter set, the spatialcharacteristic parameter set scheduled to the user-side device.

Taking, as an example, a case that the spatial characteristic parameterset includes a beam set, as shown in FIG. 3, Beam set 1 includes Beam 1,Beam 2, Beam 7, and Beam 8. The Beam set 2 includes Beam group [Beam 1,Beam 7], Beam group [Beam 1, Beam 8], Beam group [Beam 2, Beam 7] andBeam group [Beam 2, Beam 8]. If the rank indication is 1, it isimplicitly indicated that Beam set 1 is scheduled to the user-sidedevice; if the rank indication is 2, it is implicitly indicated thatBeam set 2 is scheduled to the user-side device.

Further, the user-side device receives spatial characteristic parameterindication information transmitted by the network-side device, whereinthe spatial characteristic parameter indication information is used todirectly indicate a spatial characteristic parameter scheduled to theuser-side device in the spatial characteristic parameter set. That is,in a case that the spatial characteristic parameter set includes thebeam set, the spatial characteristic parameter indication information isbeam indication information, the beam indication information is used todirectly indicate a beam scheduled to the user-side device in the beamset. In a case that the spatial characteristic parameter set includesthe precoding matrix set, the spatial characteristic parameterindication information is precoding matrix indication information, theprecoding matrix indication information is used to directly indicate aprecoding matrix scheduled to the user-side device in the precodingmatrix set.

Taking, as an example, a case that the spatial characteristic parameterset includes the beam set shown in FIG. 3, the user-side device receivesthe beam indication information transmitted by the network-side device,the beam indication information is used to directly indicate a beamscheduled to the user-side device in the beam set, and the user-sidedevice determines, according to the beam indication information, thebeam scheduled to the user-side device. For example, the beam indicationinformation indicates a beam by using 2 bits. If the beam set implicitlyindicated by the first indication information is Beam set 1, thecorrespondence relation between the beam indication information and thebeam may be: “00” used for indicating Beam 1, “01” used for indicatingBeam 2, “10” used for indicating Beam 7, and “11” used for indicatingBeam 8. If the beam set implicitly indicated by the first indicationinformation is Beam set 2, the correspondence relation between the beamindication information and the beam may be: “00” used for indicatingBeam group [Beam 1, Beam 7], and “01” used for indicating Beam group[Beam 1, Beam 8], “10” used for indicating Beam group [Beam 2, Beam 7],and “11” used for indicating Beam group [Beam 2, Beam 8].

Optionally, as an example, in a case that the first indicationinformation is a rank indication, the spatial characteristic parameterset implicitly indicated by the first indication information is only ineffect within a current schedule.

Optionally, as an example, in a case that the first indicationinformation is a rank indication, the spatial characteristic parameterset implicitly indicated by the first indication information takeseffect at a time instance when the user-side device receives the firstindication information, or takes effect after the user-side devicetransmits ACK information related to the first indication information tothe network device, or takes effect at a time instance which has apredetermined time interval between the time instance and a timeinstance when the user-side device receives the first indicationinformation.

Third Example: the first indication information is information of aresource location of a Physical Downlink Control Channel (PDCCH)

In S110, the first indication information is information of a resourcelocation of a PDCCH, and the user-side device determines the firstindication information according to the resource location of thereceived PDCCH. Correspondingly, in S120, the user-side devicedetermines, according to mapping relationship between the resourcelocation of the PDCCH and the spatial characteristic parameter set, atransmission set scheduled to the user-side device. That is, thenetwork-side device and the user-side device agree to implicitlyindicate, through the resource location of the PDCCH, a spatialcharacteristic parameter set scheduled to the user-side device.

In some embodiments of the present disclosure, the resource location ofthe PDCCH includes a location of a Symbol and/or a location of a ControlResource Set (CORESET).

Taking, as an example, a case that the spatial characteristic parameterset includes a beam set, as shown in FIG. 4, Beam set 1 includes Beam 1,Beam 2, Beam 3, and Beam 4, and Beam set 2 includes Beam 7, Beam 8, Beam9, and Beam 6. Taking, as an example, a case that the resource locationof the PDCCH is a location of the CORESET, if the PDCCH blindly detectedby the user-side device is located in a CORESET 1 within a Slot, theuser-side device determines a beam set scheduled to the user-side deviceis Beam set 1. If the PDCCH blindly detected by the user-side device islocated in a CORESET 2 in a slot, the user-side device determines a beamset scheduled to the user-side device is Beam set 2. In a multi-antenna(multi-beam) communication scenario, if a first PDCCH blindly detectedby a user-side device is located in the CORESET 1 and the second PDCCHis located in the CORESET 2 within a slot, the user-side devicedetermines that a beam set corresponding to the first PDCCH implicitlyindicated by the resource location of the PDCCH is Beam set 1, and thebeam set corresponding to the second PDCCH is Beam set 2.

Further, the user-side device receives the beam indication informationtransmitted by the network-side device, the beam indication informationis used to directly indicate a beam scheduled to the user-side device inthe beam set, and the user-side device determines, according to the beamindication information, the beam scheduled to the user-side device. Forexample, the beam indication information indicates a beam by using 2bits. If the beam set implicitly indicated by the first indicationinformation is Beam set 1, the correspondence relation between the beamindication information and the beam may be: “00” used for indicatingBeam 1, “01” used for indicating Beam 2, “10” used for indicating Beam3, and “11” used for indicating Beam 4. If the beam set implicitlyindicated by the first indication information is Beam set 2, thecorrespondence relation between the beam indication information and thebeam may be: “00” used for indicating Beam 7, “01” used for indicatingBeam 8, “10” used for indicating Beam 9, and “11” used for indicatingBeam 6.

Optionally, as an example, in a case that the first indicationinformation is the information of the resource location of the PDCCH,the spatial characteristic parameter set implicitly indicated by thefirst indication information is only in effect within the currentschedule.

Optionally, as an example, in a case that the first indicationinformation is the information of the resource location of the PDCCH,the spatial characteristic parameter set implicitly indicated by thefirst indication information takes effect at a time instance when theuser-side device receives the first indication information, or takeseffect after the user-side device transmits ACK information related tothe first indication information to the network device, or takes effectat a time instance which has a predetermined time interval between thetime instance and a time instance when the user-side device receives thefirst indication information.

It should be noted that, in description of the First to Third Examples,taking, as an example, the case that the spatial characteristicparameter set includes a beam set is merely for convenience ofdescription, rather than to limit the protection scope of someembodiments of the disclosure. According to the specific embodiments inwhich the spatial characteristic parameter set includes a beam set, aperson skilled in the art without any creative works may implement anindication of a beam set and/or precoding matrix set in scenarios wherethe spatial characteristic parameter set includes a beam set and aprecoding matrix set, and the spatial characteristic parameter setincludes a precoding matrix set.

The method of indicating a spatial characteristic parameter setaccording to some embodiments of the present disclosure has beendescribed in detail from the user-side device side in combination withFIG. 1 to FIG. 4, and the method of indicating a spatial characteristicparameter set according to some embodiments of the present disclosurewill be described in detail below from the network-side device side withreference to FIG. 5. It should be understood that an interaction betweenthe user-side device and the network-side device described from thenetwork-side device side is the same as the description made from theuser-side device side. To avoid repetition, relevant description isappropriately omitted. As shown in FIG. 5, a method 200 includes stepsS210 to S220.

S210: determining first indication information, wherein the firstindication information indirectly indicates a spatial characteristicparameter set scheduled to the user-side device, and the spatialcharacteristic parameter set is one of a plurality of spatialcharacteristic parameter sets configured for the user-side device.

S220: transmitting the first indication information.

According to the method of indicating a spatial characteristic parameterset of some embodiments of the present disclosure, the first indicationinformation determined by the network-side device indirectly indicates aspatial characteristic parameter set scheduled to the user-side device.Therefore, it is unnecessary for the network-side device to indicate,through special information, the spatial characteristic parameter setscheduled to the user-side device, which may reduce signaling overheadcaused by the indication of the spatial characteristic parameter.

In some embodiments of the present disclosure, optionally, the spatialcharacteristic parameter set includes a beam set and/or a precodingmatrix set.

In some embodiments of the present disclosure, optionally, the spatialcharacteristic parameter set includes at least one set element, and theset element is a spatial characteristic parameter group, and the spatialcharacteristic parameter group includes at least one spatialcharacteristic parameter.

In some embodiments of the present disclosure, optionally, there is anidentical set element in different spatial characteristic parametersets.

In some embodiments of the present disclosure, optionally, the spatialcharacteristic parameter set includes the beam set, the first indicationinformation is beam indication information, the beam indicationinformation is used to directly indicate a beam group scheduled to theuser-side device in the beam set, the beam indication informationindirectly indicates, through the mapping relationship between the beamindication information and the beam set, the beam set scheduled to theuser-side device.

In some embodiments of the present disclosure, optionally, the spatialcharacteristic parameter set includes the precoding matrix set, thefirst indication information is precoding matrix indication information,the precoding matrix indication information is used to directly indicatea precoding matrix group scheduled to the user-side device in theprecoding matrix set, the precoding matrix indication informationindirectly indicates, through mapping relationship between the precodingmatrix indication information and the precoding matrix set, theprecoding matrix set scheduled to the user-side device.

In some embodiments of the present disclosure, optionally, the firstindication information is a rank indication (RI), the RI indirectlyindicates, through mapping relationship between the RI and the spatialcharacteristic parameter set, the spatial characteristic parameter setscheduled to the user-side device.

In some embodiments of the present disclosure, optionally, the firstindication information is information of a resource location of aPhysical Downlink Control Channel (PDCCH).

S220 specifically includes: transmitting the PDCCH, and indirectlyindicating, through mapping relationship between a resource location ofthe PDCCH and a spatial characteristic parameter set, the spatialcharacteristic parameter set scheduled to the user-side device.

In some embodiments of the present disclosure, optionally, the resourcelocation of the PDCCH includes a location of a Symbol and/or a locationof a Control Resource Set (CORESET).

In some embodiments of the present disclosure, optionally, any beam setamong a plurality of beam sets is associated with another beam setthrough a specific beam group in the beam set; wherein the beamindication information indirectly indicating, through the mappingrelationship between the beam indication information and the beam set,the beam set scheduled to the user-side device includes: in a case thatthe beam group indicated by the beam indication information is anon-specific beam group in a first beam set, the beam set scheduled tothe user-side device being the first beam set; in a case that the beamgroup indicated by the beam indication information is a first specificbeam group in a second beam set, the beam set scheduled to the user-sidedevice being a beam set associated with the second beam set through thebeam group indicated by the beam indication information.

In some embodiments of the present disclosure, optionally, any precodingmatrix set among a plurality of precoding matrix sets is associated withanother precoding matrix set through a specific precoding matrix groupin the precoding matrix set.

The precoding matrix indication information indirectly indicating,through the mapping relationship between the precoding matrix indicationinformation and the precoding matrix set, the precoding matrix setscheduled to the user-side device includes: in a case that the precodingmatrix group indicated by the precoding matrix indication information isa non-specific precoding matrix group in a first precoding matrix set,the precoding matrix set scheduled to the user-side device being thefirst precoding matrix set; in a case that the precoding matrix groupindicated by the precoding matrix indication information is a firstspecific precoding matrix group in a second precoding matrix set, theprecoding matrix set scheduled to the user-side device being a precodingmatrix set associated with the second precoding matrix set through theprecoding matrix group indicated by the precoding matrix indicationinformation.

In some embodiments of the present disclosure, optionally, the spatialcharacteristic parameter set scheduled to the user-side device indicatedby the first indication information takes effect at a time instance whena specified condition is satisfied, or takes effect at a current timeinstance.

In some embodiments of the present disclosure, optionally, the specifiedcondition includes receiving response information related to the firstindication information and transmitted by the user-side device; or apredetermined time interval lapsing from transmitting the firstindication information.

In some embodiments of the present disclosure, optionally, the spatialcharacteristic parameter set scheduled to the user-side device andindicated by the first indication information is in effect in a currentscheduling.

In some embodiments of the present disclosure, optionally, aftertransmitting the first indication information, the network-side devicefurther transmits the spatial characteristic parameter indicationinformation to the user-side device, wherein the spatial characteristicparameter indication information is used to directly indicate a spatialcharacteristic parameter scheduled to the user-side device in thespatial characteristic parameter set.

In some embodiments of the present disclosure, the method of indicatinga spatial characteristic parameter set according to some embodiments ofthe present disclosure is described above in detail in combination withFIG. 1 to FIG. 5, and a user-side device according to some embodimentsof the present disclosure will be described in detail below withreference to FIG. 6.

FIG. 6 illustrates a user-side device according to some embodiments ofthe present disclosure. As shown in FIG. 6, the user-side device 10includes: a first processing module 11, used to acquire first indicationinformation, wherein the first indication information indirectlyindicates a spatial characteristic parameter set scheduled to theuser-side device, and the spatial characteristic parameter set is one ofa plurality of spatial characteristic parameter sets configured for theuser-side device; a second processing module 12, used to determine,according to the first indication information, the spatialcharacteristic parameter set scheduled to the user-side device.

The first indication information acquired by the user-side deviceaccording to some embodiments of the present disclosure indirectlyindicates a spatial characteristic parameter set scheduled to theuser-side device. Therefore, it is unnecessary for the network-sidedevice to indicate, through special information, the spatialcharacteristic parameter set scheduled to the user-side device, and mayreduce signaling overhead caused by an indication of the spatialcharacteristic parameter.

Optionally, as an example, the spatial characteristic parameter setincludes a beam set and/or a precoding matrix set.

Optionally, as an example, the spatial characteristic parameter setincludes at least one set element, and the set element is a spatialcharacteristic parameter group, and the spatial characteristic parametergroup includes at least one spatial characteristic parameter.

Optionally, as an example, there is an identical set element indifferent spatial characteristic parameter sets.

Optionally, as an example, the spatial characteristic parameter setincludes the beam set, the first indication information is beamindication information, the beam indication information is used todirectly indicate a beam group scheduled to the user-side device in thebeam set.

The second processing module 12 is specifically used to: determine,according to the mapping relationship between the beam indicationinformation and the beam set, the beam set scheduled to the user-sidedevice.

Optionally, as an example, the spatial characteristic parameter setincludes the precoding matrix set, the first indication information isprecoding matrix indication information, the precoding matrix indicationinformation is used to directly indicate a precoding matrix scheduled tothe user-side device in the precoding matrix set.

The second processing module 12 is specifically used to: determine,according to the mapping relationship between the precoding matrixindication information and the precoding matrix set, the precodingmatrix set scheduled to the user-side device.

Optionally, as an example, the first indication information is a rankindication (RI), wherein the second processing module 12 is specificallyused to: determine, according to a mapping relationship between the RIand the spatial characteristic parameter set, the spatial characteristicparameter set scheduled to the user-side device.

Optionally, as an example, the first indication information isinformation of a resource location of a Physical Downlink ControlChannel (PDCCH), wherein the first processing module 11 is specificallyused to: determine the first indication information according to theresource location of the received PDCCH; wherein the second processingmodule 12 is specifically used to: determine, according to mappingrelationship between the resource location of the PDCCH and the spatialcharacteristic parameter set, the spatial characteristic parameter setscheduled to the user-side device.

Optionally, as an example, the resource location of the PDCCH includes alocation of a symbol and/or a location of a Control Resource Set(CORESET).

Optionally, as an example, any beam set among a plurality of beam setsis associated with another beam set through a specific beam group in thebeam set; wherein the second processing module 12 is specifically usedto: determine, in a case that the beam group indicated by the beamindication information is a non-specific beam group in a first beam set,that the beam set scheduled to the user-side device is the first beamset; determine, in a case that the beam group indicated by the beamindication information is a specific beam group in a second beam set,that the beam set scheduled to the user-side device is a beam setassociated with the second beam set through the beam group indicated bythe beam indication information.

Optionally, as an example, any precoding matrix set among a plurality ofprecoding matrix sets is associated with another precoding matrix setthrough a specific precoding matrix group therein; wherein the secondprocessing module 12 is specifically used to: determine, in a case thatthe precoding matrix group indicated by the precoding matrix indicationinformation is a non-specific precoding matrix group in a firstprecoding matrix set, that the precoding matrix set scheduled to theuser-side device is the first precoding matrix set; determine, in a casethat the precoding matrix group indicated by the precoding matrixindication information is a specific precoding matrix group in a secondprecoding matrix set, that the precoding matrix set scheduled to theuser-side device is a precoding matrix set associated with the secondprecoding matrix set through the precoding matrix group indicated by theprecoding matrix indication information.

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device and indicated by the first indicationinformation takes effect at a time instance when a specified conditionis satisfied, or takes effect at a current time instance.

Optionally, as an example, the specified condition includes transmittingresponse information related to the first indication information to anetwork-side device; or a predetermined time interval lapsing fromreceiving the first indication information.

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device and indicated by the first indicationinformation is in effect in a current scheduling.

Optionally, as an example, after determining, according to the firstindication information, the spatial characteristic parameter setscheduled to the user-side device, the second processing module 12 isfurther used to: receive spatial characteristic parameter indicationinformation, wherein the spatial characteristic parameter indicationinformation is used to directly indicate a spatial characteristicparameter scheduled to the user-side device in the spatialcharacteristic parameter set; determine, according to the spatialcharacteristic parameter indication information, a spatialcharacteristic parameter scheduled to the user-side device in thespatial characteristic parameter set.

Description of the user-side device according to some embodiments of thepresent disclosure may be obtained by referring to processes of themethod 100 corresponding to some embodiments of the present disclosure,and each unit/module in the user-side device and other operations and/orfunctions described above are respectively for implementing thecorresponding processes in the method 100, which are not repeated herefor brevity.

FIG. 7 is a schematic diagram illustrating a structure of a network-sidedevice according to some embodiments of the present disclosure, as shownin FIG. 7, a network-side device 20 includes: a processing module 21,used to determine first indication information, wherein the firstindication information indirectly indicates a spatial characteristicparameter set scheduled to the user-side device, and the spatialcharacteristic parameter set is one of a plurality of spatialcharacteristic parameter sets configured for the user-side device; atransceiving module 22, used to transmit the first indicationinformation.

The first indication information transmitted by the network-side deviceto the user-side device according to some embodiments of the presentdisclosure indirectly indicates a spatial characteristic parameter setscheduled to the user-side device. Therefore, it is unnecessary for thenetwork-side device to indicate, through special information, thespatial characteristic parameter set scheduled to the user-side device,which may reduce the signaling overhead caused by an indication of thespatial characteristic parameter.

Optionally, as an example, the spatial characteristic parameter setincludes a beam set and/or a precoding matrix set.

Optionally, as an example, the spatial characteristic parameter setincludes at least one set element, and the set element is a spatialcharacteristic parameter group, and the spatial characteristic parametergroup includes at least one spatial characteristic parameter.

Optionally, as an example, there is an identical set element indifferent spatial characteristic parameter sets.

Optionally, as an example, the spatial characteristic parameter setincludes the beam set, the first indication information is beamindication information, the beam indication information is used todirectly indicate a beam group scheduled to the user-side device in thebeam set, the beam indication information indirectly indicates, throughmapping relationship between the beam indication information and thebeam set, the beam set scheduled to the user-side device.

Optionally, as an example, the spatial characteristic parameter setincludes the precoding matrix set, the first indication information isprecoding matrix indication information, the precoding matrix indicationinformation is used to directly indicate a precoding matrix groupscheduled to the user-side device in the precoding matrix set, theprecoding matrix indication information indirectly indicates, throughmapping relationship between the precoding matrix indication informationand the precoding matrix set, the precoding matrix set scheduled to theuser-side device.

Optionally, as an example, the first indication information is a rankindication (RI), the RI indirectly indicates, through mappingrelationship between the RI and the spatial characteristic parameterset, the spatial characteristic parameter set scheduled to the user-sidedevice.

Optionally, as an example, the first indication information isinformation of a resource location of a Physical Downlink ControlChannel (PDCCH), wherein the transceiving module 22 is specifically usedto: transmit the PDCCH, wherein mapping relationship between theresource location of the PDCCH and the spatial characteristic parameterset indirectly indicates the spatial characteristic parameter setscheduled to the user-side device.

Optionally, as an example, the resource location of the PDCCH includes alocation of a Symbol and/or a location of a Control Resource Set(CORESET).

Optionally, as an example, any one beam set among a plurality of beamsets is associated with another beam set through a specific beam groupin the beam set; wherein the beam indication information indirectlyindicating, through the mapping relationship between the beam indicationinformation and the beam set, the beam set scheduled to the user-sidedevice includes: in a case that the beam group indicated by the beamindication information is a non-specific beam group in a first beam set,the beam set scheduled to the user-side device being the first beam set;in a case that the beam group indicated by the beam indicationinformation is a first specific beam group in a second beam set, thebeam set scheduled to the user-side device being a beam set associatedwith the second beam set through the beam group indicated by the beamindication information.

Optionally, as an example, any precoding matrix set among a plurality ofprecoding matrix sets is associated with another precoding matrix setthrough a specific precoding matrix group in the precoding matrix set;wherein the precoding matrix indication information indirectlyindicating, through the mapping relationship between the precodingmatrix indication information and the precoding matrix set, theprecoding matrix set scheduled to the user-side device includes: in acase that the precoding matrix group indicated by the precoding matrixindication information is a non-specific precoding matrix group in afirst precoding matrix set, the precoding matrix set scheduled to theuser-side device being the first precoding matrix set; in a case thatthe precoding matrix group indicated by the precoding matrix indicationinformation is a first specific precoding matrix group in a secondprecoding matrix set, the precoding matrix set scheduled to theuser-side device being a precoding matrix set associated with the secondprecoding matrix set through the precoding matrix group indicated by theprecoding matrix indication information.

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device and indicated by the first indicationinformation takes effect at a time instance when a specified conditionis satisfied, or takes effect at a current time instance.

Optionally, as an example, the specified condition includes receivingresponse information related to the first indication information andtransmitted by the user-side device; or a predetermined time intervallapsing from transmitting the first indication information.

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device and indicated by the first indicationinformation is in effect in a current scheduling.

Optionally, as an example, after transmitting the first indicationinformation, the transceiving module 22 further used to: transmitspatial characteristic parameter indication information, wherein thespatial characteristic parameter indication information is used todirectly indicate a spatial characteristic parameter scheduled to theuser-side device in the spatial characteristic parameter set.

Description of the network-side device according to some embodiments ofthe present disclosure may be obtained by referring to processes of themethod 200 corresponding to some embodiments of the present disclosure,and each unit/module in the network-side device and the other operationsand/or functions described above are respectively for implementing thecorresponding processes in the method 200, which are not repeated herefor brevity.

FIG. 8 is a schematic diagram illustrating a structure of a user-sidedevice according to another embodiment of the present disclosure, asshown in FIG. 8, a user-side device 100 includes: at least one processor110, a storage 120, at least one network interface 130 and a userinterface 140. The various components in the user-side device 100 arecoupled together by a bus system 150. It will be appreciated that thebus system 150 is used to enable connection communication among thesecomponents. The bus system 150 includes a power bus, a control bus, astatus signal bus and a data bus. However, for clarity of description,various buses are labeled as the bus system 150 in FIG. 8.

The user interface 140 may include a display, a keyboard, or a pointingdevice (e.g., a mouse), a trackball, a touchpad, or a touch screen, etc.

It is to be understood that the storage 120 in some embodiments of thepresent disclosure can be either a volatile storage or a non-volatilestorage, or can include both the volatile storage and the non-volatilestorage. The non-volatile storage may be a Read-Only Memory (ROM), aProgrammable ROM (PROM), an Erasable PROM (EPROM), or an ElectricallyEPROM (EEPROM) or a flash memory. The volatile storage can be a RandomAccess Memory (RAM) that acts as an external cache. By way of exampleand not limitation, many forms of RAM are available, such as a StaticRAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a DoubleData Rate SDRAM (DDRSDRAM), an Enhanced SDRAM (ESDRAM), a Synchlink DRAM(SLDRAM) and a Direct Rambus RAM (DRRAM). The storage 120 of the systemsand methods described in some embodiments of the present disclosure isintended to include, but is not limited to, these and any other suitabletypes of memory.

In some embodiments, the storage 120 stores the following elements,executable modules or data structures, or a subset thereof, or anextended set thereof: an operating system 121 and an application program122.

The operating system 121 includes various system programs, such as aframework layer, a core library layer, a driver layer, and the like, forimplementing various basic services and processing hardware-based tasks.The application program 122 includes various application programs, suchas a Media Player, a Browser, and the like, for implementing variousapplication services. A program implementing the methods of someembodiments of the present disclosure can be included in the applicationprogram 122.

In some embodiments of the present disclosure, the user-side device 100further includes: a computer program stored in the storage 120 andexecutable by the processor 110. In a case that the computer program isexecuted by the processor 110, the processor 110 is used to implementthe following steps: acquiring first indication information, wherein thefirst indication information indirectly indicates a spatialcharacteristic parameter set scheduled to the user-side device, and thespatial characteristic parameter set is one of a plurality of spatialcharacteristic parameter sets configured for the user-side device;determining, according to the first indication information, the spatialcharacteristic parameter set scheduled to the user-side device.

The above method disclosed in some embodiments of the present disclosuremay be applied to the processor 110 or implemented by the processor 110.The processor 110 may be an integrated circuit chip having a processingcapability of signals. During an implementation process, steps of themethod may be realized in form of integrated logical circuits ofhardware in the processor 110, or in form of instructions in software.The processor 110 may be a general purpose processor, a Digital SignalProcessor (DSP), an Application Specific Integrated Circuit (ASIC), aField Programmable Gate Array (FPGA) or other programmable logicdevices, discrete gates or transistor logic devices, discrete hardwarecomponents. Various methods, steps, and logical block diagrams disclosedin some embodiments of the present disclosure may be implemented orcarried out. The general purpose processor may be a microprocessor, anyconventional processor, etc. The steps of the methods disclosed withreference to the embodiments of the present disclosure may be embodiedin a form of hardware in a decoding processor, or performed by acombination of a hardware in the decoding processor and softwaremodules. The software modules may reside in a well-established computerreadable storage medium in the art, such as a RAM, a flash memory, aROM, a PROM or an EEPROM, a register. The computer readable storagemedium resides in the storage 120. The processor 110 reads informationfrom the storage 120 and performs the steps of the methods with hardwareof the processor 110. Specifically, a computer program is stored on thecomputer readable storage medium. In a case that the computer program isexecuted by the processor 110, the processor 110 implements each step ofmethod embodiments in the method 100 described above.

It is to be understood that the embodiments described in someembodiments of the present disclosure may be implemented in hardware,software, firmware, middleware, microcodes, or any combination thereof.For hardware implementation, processing units may be implemented in oneor more of Application Specific Integrated Circuits (ASIC), DigitalSignal Processors (DSP), DSP devices (DSPD), Programmable Logic Device(PLD), Field Programmable Gate Array (FPGA), a general purposeprocessor, a controller, a microcontroller, a microprocessor, otherelectronic units used to perform the functions described in the presentdisclosure, or a combination thereof.

For software implementation, techniques described in some embodiments ofthe present disclosure may be implemented by modules (e.g., processes,functions, etc.) that perform the functions described in someembodiments of the present disclosure. The software codes can be storedin the storage and executed by the processor. The storage can beimplemented within the processor or external to the processor.

Optionally, the spatial characteristic parameter set includes the beamset, the first indication information is beam indication information,the beam indication information is used to directly indicate a beamgroup scheduled to the user-side device in the beam set. In a case thatthe computer program is executed by the processor 110, the processor 110implements the following step: determining, according to mappingrelationship between the beam indication information and the beam set,the beam set scheduled to the user-side device.

Optionally, the spatial characteristic parameter set includes theprecoding matrix set, the first indication information is precodingmatrix indication information, the precoding matrix indicationinformation is used to directly indicate a precoding matrix groupscheduled to the user-side device in the precoding matrix set. In a casethat the computer program is executed by the processor 110, theprocessor 110 implements the following step: determining, according tomapping relationship between the precoding matrix indication informationand the precoding matrix set, the precoding matrix set scheduled to theuser-side device.

Optionally, the first indication information is a rank indication (RI).In a case that the computer program is executed by the processor 110,the processor 110 implements the following step: determining, accordingto mapping relationship between the RI and the spatial characteristicparameter set, the spatial characteristic parameter set scheduled to theuser-side device.

Optionally, the first indication information is information of aresource location of a Physical Downlink Control Channel (PDCCH). In acase that the computer program is executed by the processor 110, theprocessor 110 implements the following steps: determining the firstindication information according to the resource location of thereceived PDCCH; determining, according to mapping relationship betweenthe resource location of the PDCCH and the spatial characteristicparameter set, the spatial characteristic parameter set scheduled to theuser-side device.

Optionally, any beam set among a plurality of spatial characteristicparameter sets is associated with another beam set through a specificbeam group in the beam set. In a case that the computer program isexecuted by the processor 110, the processor 110 implements thefollowing steps: determining, in a case that the beam group indicated bythe beam indication information is a non-specific beam group in a firstbeam set, that the beam set scheduled to the user-side device is thefirst beam set; determining, in a case that the beam group indicated bythe beam indication information is a specific beam group in a secondbeam set, that the beam set scheduled to the user-side device is a beamset associated with the second beam set through the beam group indicatedby the beam indication information.

Optionally, any precoding matrix set among a plurality of precodingmatrix sets is associated with another precoding matrix set through aspecific precoding matrix group in the precoding matrix set. In a casethat the computer program is executed by the processor 110, theprocessor 110 implements the following steps: determining, in a casethat the precoding matrix group indicated by the precoding matrixindication information is a non-specific precoding matrix group in afirst precoding matrix set, that the precoding matrix set scheduled tothe user-side device is the first precoding matrix set; determining, ina case that the precoding matrix group indicated by the precoding matrixindication information is a specific precoding matrix group in a secondprecoding matrix set, that the precoding matrix set scheduled to theuser-side device is a precoding matrix set associated with the secondprecoding matrix set through the precoding matrix group indicated by theprecoding matrix indication information.

Optionally, after determining, according to the first indicationinformation, the spatial characteristic parameter set scheduled to theuser-side device, and in a case that the computer program is executed bythe processor 110, the processor 110 implements the following steps:receiving spatial characteristic parameter indication information,wherein the spatial characteristic parameter indication information isused to directly indicate a spatial characteristic parameter scheduledto the user-side device in the spatial characteristic parameter set;determining, according to the spatial characteristic parameterindication information, the spatial characteristic parameter scheduledto the user-side device in the spatial characteristic parameter set.

Optionally, as an example, the spatial characteristic parameter setincludes at least one set element, and the set element is a spatialcharacteristic parameter group, and the spatial characteristic parametergroup includes at least one spatial characteristic parameter.

Optionally, as an example, there is an identical set element indifferent spatial characteristic parameter sets.

Optionally, as an example, the resource location of the PDCCH includes alocation of a Symbol and/or a location of a Control Resource Set(CORESET).

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device and indicated by the first indicationinformation takes effect at a time instance when a specified conditionis satisfied, or takes effect at a current time instance.

Optionally, as an example, the specified condition includes transmittingresponse information related to the first indication information to anetwork-side device; or a predetermined time interval lapsing fromreceiving the first indication information.

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device and indicated by the first indicationinformation is in effect in a current scheduling.

The first indication information acquired by the user-side deviceaccording to some embodiments of the present disclosure indirectlyindicates a spatial characteristic parameter set scheduled to theuser-side device. Therefore, it is unnecessary for the network-sidedevice to indicate, through special information, the spatialcharacteristic parameter set scheduled to the user-side device, and mayreduce signaling overhead caused by an indication of the spatialcharacteristic parameter.

Description of the user-side device 100 according to some embodiments ofthe present disclosure may be obtained by referring to the user-sidedevice 10 corresponding to some embodiments of the present disclosure,and each unit/module in the user-side device and the other operationsand/or functions described above are respectively for implementingcorresponding processes in the method 100, which are not repeated herefor brevity.

FIG. 9 is a schematic diagram illustrating a structure of a network-sidedevice according to another embodiment of the present disclosure, whichmay implement the details of the method of indicating a beam set in themethod 200 and achieve the same effect. As shown in FIG. 9, thenetwork-side device 200 includes: a processor 210, a transceiver 220, astorage 230 and a bus interface.

In some embodiments of the present disclosure, the network-side device200 further includes: a computer program stored in the storage 230 andexecutable by the processor 210. In a case that the computer program isexecuted by the processor 210, the processor 110 implements thefollowing step: determining first indication information, wherein thefirst indication information indirectly indicates a spatialcharacteristic parameter set scheduled to the user-side device, and thespatial characteristic parameter set is one of a plurality of spatialcharacteristic parameter sets configured for the user-side device;transmitting the first indication information.

In FIG. 9, a bus architecture may include any number of interconnectedbuses and bridges. Various circuits, specifically, one or moreprocessors represented by the processor 210 and a storage represented bythe storage 230, are linked together. The bus architecture may also linkvarious other circuits such as peripherals, voltage regulators and powermanagement circuits, which are well known in the art, and therefore afurther description thereof is omitted herein. The bus interfaceprovides interfaces. The transceiver 220 may be a plurality of elements,that is, includes a transmitter and a receiver, to provide units used tocommunicate with various other apparatuses over a transmission medium.

The processor 210 is responsible for managing the bus architecture andgeneral processing, and the storage 230 can store data used by theprocessor 210 when performing operations.

Optionally, the first indication information is information of aresource location of a Physical Downlink Control Channel (PDCCH). In acase that the computer program is executed by the processor 210, theprocessor 210 implements the following step: transmitting the PDCCH,wherein mapping relationship between the resource location of the PDCCHand the spatial characteristic parameter set indirectly indicates thespatial characteristic parameter set scheduled to the user-side device.

Optionally, after transmitting the first indication information. In acase that the computer program is executed by the processor 210, theprocessor 210 implements the following step: transmitting spatialcharacteristic parameter indication information, wherein the spatialcharacteristic parameter indication information is used to directlyindicate a spatial characteristic parameter scheduled to the user-sidedevice in the spatial characteristic parameter set.

Optionally, as an example, the spatial characteristic parameter setincludes at least one set element, and the set element is a spatialcharacteristic parameter group, and the spatial characteristic parametergroup includes at least one spatial characteristic parameter.

Optionally, as an example, there is an identical set element indifferent spatial characteristic parameter sets.

Optionally, as an example, the spatial characteristic parameter setincludes the beam set, the first indication information is beamindication information, the beam indication information is used todirectly indicate a beam group scheduled to the user-side device in thebeam set, the beam indication information indirectly indicates, throughmapping relationship between the beam indication information and thebeam set, the beam set scheduled to the user-side device.

Optionally, as an example, the spatial characteristic parameter setincludes the precoding matrix set, the first indication information isprecoding matrix indication information, the precoding matrix indicationinformation is used to directly indicate a precoding matrix groupscheduled to the user-side device in the precoding matrix set, theprecoding matrix indication information indirectly indicates, throughmapping relationship between the precoding matrix indication informationand the precoding matrix set, the precoding matrix set scheduled to theuser-side device.

Optionally, as an example, the first indication information is a rankindication (RI), the RI indirectly indicates, through mappingrelationship between the RI and the spatial characteristic parameterset, the spatial characteristic parameter set scheduled to the user-sidedevice.

Optionally, as an example, the resource location of the PDCCH includes alocation of a Symbol and/or a location of a Control Resource Set(CORESET).

Optionally, as an example, any beam set among a plurality of beam setsis associated with another beam set through a specific beam group in thebeam set.

The beam indication information, through the mapping relationshipbetween the beam indication information and the beam set, indirectlyindicating the beam set scheduled to the user-side device includes: in acase that the beam group indicated by the beam indication information isa non-specific beam group in a first beam set, the beam set scheduled tothe user-side device being the first beam set; in a case that the beamgroup indicated by the beam indication information is a first specificbeam group in a second beam set, the beam set scheduled to the user-sidedevice being a beam set associated with the second beam set through thebeam group indicated by the beam indication information.

Optionally, as an example, any precoding matrix set among a plurality ofprecoding matrix sets is associated with another precoding matrix setthrough a specific precoding matrix group in the precoding matrix set.

The precoding matrix indication information, through the mappingrelationship between the precoding matrix indication information and theprecoding matrix set, indirectly indicating the precoding matrix setscheduled to the user-side device includes: in a case that the precodingmatrix group indicated by the precoding matrix indication information isa non-specific precoding matrix group in a first precoding matrix set,the precoding matrix set scheduled to the user-side device being thefirst precoding matrix set; in a case that the precoding matrix groupindicated by the precoding matrix indication information is a firstspecific precoding matrix group in a second precoding matrix set, theprecoding matrix set scheduled to the user-side device being a precodingmatrix set associated with the second precoding matrix set through theprecoding matrix group indicated by the precoding matrix indicationinformation.

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device and indicated by the first indicationinformation takes effect at a time instance when a specified conditionis satisfied, or takes effect at a current time instance.

Optionally, as an example, the specified condition includes receivingresponse information related to the first indication information andtransmitted by the user-side device; or a predetermined time intervallapsing from transmitting the first indication information.

Optionally, as an example, the spatial characteristic parameter setscheduled to the user-side device indicated by the first indicationinformation is in effect in a current scheduling.

The first indication information transmitted by the network-side deviceto the user-side device according to some embodiments of the presentdisclosure indirectly indicates a spatial characteristic parameter setscheduled to the user-side device. Therefore, it is unnecessary for thenetwork-side device to indicate, through special information, thespatial characteristic parameter set scheduled to the user-side device,which may reduce the signaling overhead caused by an indication of thespatial characteristic parameter.

Description of the network-side device 200 according to some embodimentsof the present disclosure may be obtained by referring to thenetwork-side device 20 corresponding to some embodiments of the presentdisclosure, and each unit/module in the network-side device and theother operations and/or functions described above are respectively forimplementing the corresponding processes in the method 200, which arenot repeated here for brevity.

In the methods and the devices provided by the present disclosure, thefirst indication information indirectly indicates a spatialcharacteristic parameter set scheduled to a user-side device, that is,the network-side device indicates the spatial characteristic parameterset scheduled to the user-side device by way of an implicit indication.Therefore, according to the methods of some embodiments of the presentdisclosure, it is unnecessary for the network-side device to indicate,through special information, the spatial characteristic parameter setscheduled to the user-side device, which may reduce the signalingoverhead caused by an indication of the spatial characteristicparameter.

A person skilled in the art may be aware that, exemplary units andalgorithm steps described in connection with the embodiments disclosedherein may be implemented by electronic hardware or a combination ofcomputer software and electronic hardware. Whether the functions areperformed by hardware or software depends on particular applications anddesign constraint conditions of technical solutions. A person skilled inthe art can use different methods to implement the described functionsfor different particular applications, but it should not be consideredthat the implementation goes beyond the scope of the present disclosure.

It may be clearly understood by a person skilled in the art that, forease of description and conciseness, a detailed working process of theforegoing systems, devices, and units, may be obtained by reference to acorresponding process in the foregoing method embodiments, and detailsare not described herein again.

In the embodiments provided in the present disclosure, it should beunderstood that the disclosed systems, devices and methods may beimplemented in other manners. For example, the described deviceembodiment is merely exemplary. For example, an unit division is merelya logical function division and there may exist another division inactual implementation. For example, a plurality of units or componentsmay be combined or integrated into another system, or some features maybe ignored or not performed. In addition, a mutual coupling or a directcoupling or communication connection shown or discussed may be anindirect coupling or a communication connection through some interfaces,devices or units, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate,and parts displayed as units may or may not be physical units, that is,may be located in one position, or may be distributed on a plurality ofnetwork units. A part or all of the units may be selected according toactual needs to achieve objectives of the solutions of the embodimentsof the present disclosure.

In addition, various functional units in various embodiments of thepresent disclosure may be integrated into one processing unit, or eachof the units may exist alone physically, or two or more units may beintegrated into one unit.

If the function is implemented in form of a software functional unit andsold or used as an independent product, the soft function unit may bestored in a computer readable storage medium. Based on such anunderstanding, an essential part or a part contributing to the prior artof technical solutions of the present disclosure, or a part of thetechnical solutions may be implemented in form of a software product.The computer software product is stored in a storage medium, andincludes several instructions for instructing a computer device (whichmay be a personal computer, a server, or a network device) to performall or a part of the steps of the methods described in the embodimentsof the present disclosure. The above storage medium includes variousmedia that can store program codes, such as a USB flash drive, aremovable hard disk, a Read-Only Memory (ROM), a Random Access Memory(RAM), a magnetic disk, an optical disk or the like.

The computer readable storage medium described in the present disclosuremay be a volatile storage medium or a non-volatile storage medium.

The aforementioned are merely specific implementations of the presentdisclosure, but the protection scope of the present disclosure is by nomeans limited thereto. Any modifications or substitutions that wouldeasily occurred to those skilled in the art, without departing from thetechnical scope disclosed in the present disclosure, should beencompassed in the protection scope of the present disclosure.Therefore, the protection scope of the present disclosure is determinedby the protection scope of the claims.

What is claimed is:
 1. A method of indicating a spatial characteristicparameter set, performed by a user-side device and comprising: acquiringfirst indication information, wherein the first indication informationindirectly indicates a spatial characteristic parameter set scheduled tothe user-side device, and the spatial characteristic parameter set isone of a plurality of spatial characteristic parameter sets configuredfor the user-side device; and determining, according to the firstindication information, the spatial characteristic parameter setscheduled to the user-side device, wherein the spatial characteristicparameter set comprises a beam set and/or a recoding matrix set,wherein, the spatial characteristic parameter set comprises a beam set,the first indication information is beam indication information, thebeam indication information is used to directly indicate a beam groupscheduled to the user-side device in the beam set, determining,according to the first indication information, the spatialcharacteristic parameter set scheduled to the user-side devicecomprises, determining, according to manning relationship between beamindication information and a beam set, a beam set scheduled to theuser-side device; and/or, the spatial characteristic parameter setcomprises a precoding matrix set, the first indication information isprecoding matrix indication information, the precoding matrix indicationinformation is used to directly indicate a precoding matrix groupscheduled to the user-side device in the precoding matrix set:determining, according to the first indication information, the spatialcharacteristic parameter set scheduled to the user-side devicecomprises, determining, according to mapping relationship betweenprecoding matrix indication information and a precoding matrix set, theprecoding matrix set scheduled to the user-side device, wherein any setamong a plurality of beam sets is associated with another beam setthrough a specific beam group in the beam set, determining, according tothe mapping relationship between the beam indication information and thebeam set, the beam set scheduled to the user-side device comprises:determining, in a case that the beam group indicated by the beamindication information is a non-specific beam group in a first beam set,that the beam set scheduled to the user-side device is the first beamset; determining, in a case that the beam group indicated by the beamindication information is a specific beam group in a second beam set,that the beam set scheduled to the user-side device is a beam setassociated with the second beam set through the beam group indicated bythe beam indication information, any precoding matrix set among aplurality of precoding matrix sets is associated with another precodingmatrix set through a specific precoding matrix group in the precodingmatrix, determining, according to the mapping relationship between theprecoding matrix indication information and the precoding matrix set,the precoding matrix set scheduled to the user-side device comprises:determining, in a case that the precoding matrix group indicated by theprecoding matrix indication information is a non-specific precodingmatrix group in a first precoding matrix set, that the precoding matrixset scheduled to the user-side device is the first precoding matrix set;determining, in a case that the precoding matrix group indicated by theprecoding matrix indication information is a specific precoding matrixgroup in a second precoding matrix set, that the precoding matrix setscheduled to the user-side device is a precoding matrix set associatedwith the second precoding matrix set through the precoding matrix groupindicated by the precoding matrix indication information.
 2. The methodaccording to claim 1, wherein the spatial characteristic parameter setcomprises at least one set element, the set element is a spatialcharacteristic parameter group, and the spatial characteristic parametergroup comprises at least one spatial characteristic parameter.
 3. Themethod according to claim 1, wherein, the first indication informationis a rank indication (RI); determining, according to the firstindication information, the spatial characteristic parameter setscheduled to the user-side device comprises: determining, according tomapping relationship between an RI and a spatial characteristicparameter set, the spatial characteristic parameter set scheduled to theuser-side device; or, the first indication information is information ofa resource of a physical downlink control channel (PDCCH); acquiring thefirst indication information comprises: acquiring the information of theresource of a received PDCCH; determining, according to the firstindication information, the spatial characteristic parameter setscheduled to the user-side device comprises: determining, according tomapping relationship between the resource of the PDCCH and the spatialcharacteristic parameter set, the spatial characteristic parameter setscheduled to the user-side device.
 4. The method according to claim 3,wherein, in a case that the first indication information is theinformation of the resource of the PDCCH, the resource of the PDCCH is acontrol resource set (CORESET).
 5. The method according to claim 3,wherein, after determining, according to the first indicationinformation, the spatial characteristic parameter set scheduled to theuser-side device, the method further comprises: receiving spatialcharacteristic parameter indication information, wherein the spatialcharacteristic parameter indication information is used to directlyindicate a spatial characteristic parameter scheduled to the user-sidedevice in the spatial characteristic parameter set; determining,according to the spatial characteristic parameter indicationinformation, the spatial characteristic parameter scheduled to theuser-side device in the spatial characteristic parameter set.
 6. Amethod of indicating a spatial characteristic parameter set, performedby a network-side device and comprising: determining first indicationinformation, wherein the first indication information indirectlyindicates a spatial characteristic parameter set scheduled to theuser-side device, and the spatial characteristic parameter set is one ofa plurality of spatial characteristic parameter sets configured for theuser-side device; and transmitting the first indication information,wherein the spatial characteristic parameter set comprises a beam setand/or a precoding matrix set, wherein, the spatial characteristic parameter set comprises the beam set, the first indication information isbean indication information, the beam indication information is used todirectly indicate a beam group scheduled to the user-side deice in thebeam set, the beam indication information indirectly indicates, throughmapping relationship between beam indication information and a beam set,the beam set scheduled to the user-side device; and/or, the spatialcharacteristic parameter set comprises the precoding matrix set, thefirst indication information is precoding matrix indication information,the precoding matrix indication information is used to directly indicatea precoding matrix group scheduled to the user-side device in theprecoding matrix set, the precoding matrix indication informationindirectly indicates, through mapping relationship between precodingmatrix indication information and a precoding matrix set, the precodingmatrix set scheduled to the user-side device, wherein, any beam setamong a plurality of beam sets is associated with another beam setthrough a specific beam group in the beam set, the beam indicationinformation, through the mapping relationship between beam indicationinformation and a beam set, indirectly indicating the beam set scheduledto the user-side device comprises: in a case that the beam groupindicated by the beam indication information is a non-specific beamgroup in a first beam set, the beam set scheduled to the user-sidedevice being the first beam set, in a case that the beam group indicatedby the beam indication information is a first specific beam group in asecond beam set, the beam set scheduled to the user-side device being abeam set associated with the second beam set through the beam groupindicated by the beam indication information, any precoding matrix setamong a plurality of precoding matrix sets is associated with anotherprecoding matrix set through a specific precoding matrix group in theprecoding matrix set; the precoding matrix indication informationindirectly indicating, through the mapping relationship betweenprecoding matrix indication information and a precoding matrix set, theprecoding matrix set scheduled to the user-side device comprises: in acase that the precoding matrix group indicated by the precoding matrixindication information is a non-specific precoding matrix group in afirst precoding matrix set, the precoding matrix set scheduled to theuser-side device being the first precoding matrix set, in a case thatthe precoding matrix group indicated by the precoding matrix indicationinformation is a first specific precoding matrix group in a secondprecoding matrix set, the precoding matrix set scheduled to theuser-side device being a precoding matrix set associated with the secondprecoding matrix set through the precoding matrix group indicated by theprecoding matrix indication information.
 7. The method according toclaim 6, wherein the spatial characteristic parameter set comprises atleast one set element, the set element is a spatial characteristicparameter group, and the spatial characteristic parameter groupcomprises at least one spatial characteristic parameter.
 8. The methodaccording to claim 6, wherein the first indication information is a rankindication (RI), the RI indirectly indicates, through mappingrelationship between an RI and a spatial characteristic parameter set,the spatial characteristic parameter set scheduled to the user-sidedevice; and/or, the first indication information is information of aresource of a physical downlink control channel (PDCCH); transmittingthe first indication information comprises: transmitting the PDCCH,wherein mapping relationship between a resource of a PDCCH and a spatialcharacteristic parameter set indirectly indicates the spatialcharacteristic parameter set scheduled to the user-side device.
 9. Themethod according to claim 8, wherein, in a case that the firstindication information is the information of the resource of the PDCCH,the resource of the PDCCH is a control resource set (CORESET).
 10. Themethod according to claim 8, wherein, after transmitting the firstindication information, the method further comprises: transmittingspatial characteristic parameter indication information, wherein thespatial characteristic parameter indication information is used todirectly indicate a spatial characteristic parameter scheduled to theuser-side device in the spatial characteristic parameter set.
 11. Anetwork-side device, comprising: a storage, a processor, and a programof indicating a spatial characteristic parameter set, wherein theprogram of indicating a spatial characteristic parameter set is storedon the storage and executable by the processor; in a case that theprogram of indicating a spatial characteristic parameter set is executedby the processor, the processor implements steps of the method ofindicating a spatial characteristic parameter set according to claim 6.12. The network-side device according to claim 11, wherein, the spatialcharacteristic parameter set comprises at least one set element, the setelement is a spatial characteristic parameter group, and the spatialcharacteristic parameter group comprises at least one spatialcharacteristic parameter.
 13. The network-side device according to claim11, wherein, the first indication information is a rank indication (RI),the RI indirectly indicates, through mapping relationship between an RIand a spatial characteristic parameter set, the spatial characteristicparameter set scheduled to the user-side device; and/or, the firstindication information is information of a resource of a physicaldownlink control channel (PDCCH); transmitting the first indicationinformation comprises: transmitting the PDCCH, wherein mappingrelationship between a resource of a PDCCH and a spatial characteristicparameter set indirectly indicates the spatial characteristic parameterset scheduled to the user-side device.
 14. The network-side deviceaccording to claim 13, wherein, in a case that the first indicationinformation is the information of the resource of the PDCCH, theresource of the PDCCH is a control resource set (CORESET).
 15. Thenetwork-side device according to claim 13, wherein, in a case that theprogram of indicating a spatial characteristic parameter set is executedby the processor, the processor further implements: after transmittingthe first indication information, transmitting spatial characteristicparameter indication information, wherein the spatial characteristicparameter indication information is used to directly indicate a spatialcharacteristic parameter scheduled to the user-side device in thespatial characteristic parameter set.
 16. A user-side device,comprising: a storage, a processor, and a program of indicating aspatial characteristic parameter set, wherein the program of indicatinga spatial characteristic parameter set is stored on the storage andexecutable by the processor; in a case that the program of indicatingthe spatial characteristic parameter set is executed by the processor,the processor implements a method of indicating a spatial characteristicparameter set, the method comprises: acquiring first indicationinformation, wherein the first indication information indirectlyindicates a spatial characteristic parameter set scheduled to theuser-side device, and the spatial characteristic parameter set is one ofa plurality of spatial characteristic parameter sets configured for theuser-side device; determining, according to the first indicationinformation, the spatial characteristic parameter set scheduled to theuser-side device, wherein the spatial characteristic parameter setcomprises a beam set and/or a precoding matrix set, wherein, the spatialcharacteristic parameter set comprises a beam set, the first indicationinformation is beam indication information, the beam indicationinformation is used to directly indicate a beam group scheduled to theuser-side device in the beam set: determining, according to the firstindication information, the spatial characteristic parameter setscheduled to the user-side device comprises: determining, according tomapping relationship between beam indication information and a beam set,a beam set scheduled to the user-side device; and/or, the spatialcharacteristic parameter set comprises a precoding matrix set, the firstindication information is preceding matrix indication information, theprecoding matrix indication information is used to directly indicate aprecoding matrix group scheduled to the user-side device in theprecoding matrix set: determining, according to the first indicationinformation, the spatial characteristic parameter set scheduled to theuser-side device comprises: determining, according to mappingrelationship between precoding matrix indication information and aprecoding matrix set, the precoding matrix set scheduled to theuser-side device, wherein any set among a plurality of beam sets isassociated with another beam set through a specific beam group in thebeam set; determining, according to the mapping relationship between thebeam indication information and the beam set, the beam set scheduled tothe user-side device comprises: determining, in a case that the beamgroup indicated by the beam indication information is a non-specificbeam group in a first beam set, that the beam set scheduled to theuser-side device is the first beam set; determining, in a case that thebeam group indicated by the beam indication information is a specificbeam group in a second beam set that the beam set scheduled to theuser-side device is a beam set associated with the second beam setthrough the beam group indicated by the beam indication information, anyprecoding matrix set among a plurality of precoding matrix sets isassociated with another precoding matrix set through a specificprecoding matrix group in the precoding matrix; determining, accordingto the mapping relationship between the precoding matrix indicationinformation and the precoding matrix set, the precoding matrix setscheduled to the user-side device comprises, determining, in a case thatthe precoding matrix group indicated by the precoding matrix indicationinformation is a non-specific precoding matrix group in a firstprecoding matrix set, that the precoding matrix set scheduled to theuser-side device is the first precoding matrix set, determining, in acase that the precoding matrix group indicated by the precoding matrixindication information is a specific precoding matrix group in a secondprecoding matrix set, that the precoding matrix set scheduled to theuser-side device is a precoding matrix set associated with the secondprecoding matrix set through the precoding matrix group indicated by theprecoding matrix indication information.
 17. The user-side deviceaccording to claim 16, wherein, the spatial characteristic parameter setcomprises at least one set element, the set element is a spatialcharacteristic parameter group, and the spatial characteristic parametergroup comprises at least one spatial characteristic parameter.
 18. Theuser-side device according to claim 16, wherein, the first indicationinformation is a rank indication (RI); determining, according to thefirst indication information, the spatial characteristic parameter setscheduled to the user-side device comprises: determining, according tomapping relationship between an RI and a spatial characteristicparameter set, the spatial characteristic parameter set scheduled to theuser-side device; or, the first indication information is information ofa resource of a physical downlink control channel (PDCCH); acquiring thefirst indication information comprises: acquiring the information of theresource of a received PDCCH; determining, according to the firstindication information, the spatial characteristic parameter setscheduled to the user-side device comprises: determining, according tomapping relationship between the resource of the PDCCH and the spatialcharacteristic parameter set, the spatial characteristic parameter setscheduled to the user-side device.
 19. The user-side device according toclaim 18, wherein, in a case that the first indication information isthe information of the resource of the PDCCH, the resource of the PDCCHis a control resource set (CORESET).
 20. The user-side device accordingto claim 18, wherein, in a case that the program of indicating thespatial characteristic parameter set is executed by the processor, theprocessor further implements: after determining, according to the firstindication information, the spatial characteristic parameter setscheduled to the user-side device, receiving spatial characteristicparameter indication information, wherein the spatial characteristicparameter indication information is used to directly indicate a spatialcharacteristic parameter scheduled to the user-side device in thespatial characteristic parameter set; determining, according to thespatial characteristic parameter indication information, the spatialcharacteristic parameter scheduled to the user-side device in thespatial characteristic parameter set.